At room ambient: +25 °C nominal and 50 % relative humidity nominal, except as
2
See “Processing Speed” in How to Order selection guide.
3
Other Effective Electrical Angles available. See How to Order selection guide.
ADJUSTMENT SLOT
20.22
(0.80)
AMM20B
MEXICO
14.29
(0.56)
TOLERANCES EXCEPT WHERE NOTED
.127
.50
.XXX ±
DECIMALS: .XX ±
(.02)
(.005)
DIMENSIONS:
MM
(INCHES)
noted.
Resolution
No. of Turns
3
4
5
6
7
8
9
EEA
1080
1440
1800
2160
2520
2880
3240
Resolution
1228
1638
2047
2456
2866
3275
3685
No. of Turns
10
11
12
13
14
15
16
EEA
3600
3960
4320
4680
5040
5400
5760
Resolution
4094
2816
3072
3328
3584
3840
4096
Asia-Pacific:
Tel: +886-2 2562-4117
Email: asiacus@bourns.com
Europe:
Tel: +36 88 520 390
Email: eurocus@bourns.com
The Americas:
Tel: +1-951 781-5500
Email: americus@bourns.com
www.bourns.com
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
AMM20B
Multiturn Magnetic Position Sensor
How To Order
A M M 2 0 B 5 A 1 B L A S L
3
8 0
MODEL DESIGNATOR
Code Description
AM Analog Magnetic
CONFIGURATION
Code Description
M
Multiturn
SIZE
Code Description
20
20 mm
MOUNTING CONFIGURATION
Code Description
B
Bushing Mount,
Stainless Steel Shaft:
13/16 ” FMS, 1/4 ” Dia.
Bushing Material: Brass
Bearing Type: Sleeve
SUPPLY VOLTAGE, V
CC
3-10 Turns
11-16 Turns
Code Description
Code Description
24 1080 ° (3 Turns)
88 3960 ° (11 Turns)
32 1440 ° (4 Turns)
96 4320 ° (12 Turns)
40 1800 ° (5 Turns)
02 4680 ° (13 Turns)
48 2160 ° (6 Turns)
10 5040 ° (14 Turns)
56 2520 ° (7 Turns)
18 5400 ° (15 Turns)
64 2880 ° (8 Turns)
26 5760 ° (16 Turns)
72 3240 ° (9 Turns)
80 3600 ° (10 Turns)
DIRECTION
Code Description
1
CCW (Output Increasing)
3
CW (Output Increasing)
TERMINAL CONFIGURATION
Code Description
L
Axial PC Pin
SHAFT STYLE
Code Description
S
Slotted
VOLTAGE RATIO ±1 %
Code Description
A
1-99 % of VCC
PROCESSING SPEED
Code Output Refresh Rate
H
High (400 µs Typ.)
L
Low (660 µs Typ.)
EFFECTIVE
ELECTRICAL ANGLE
Rotational Life (Millions of Cycles)
12
10
8
6
4
2
0
0
50
100
150
Code Description
5
5 VDC
Code
3-10 Turns 11-16 Turns Type
A1
B1
Analog / Single Output
INDEPENDENT LINEARITY
Code Description
A
± 1.0 %
B
± 0.5 %
300
C
350
± 0.3 %
450
400
500
NUMBER OF TURNS / OUTPUT TYPE
200
250
Shaft Side Load (grams)
Shaded areas represent most common features.
Standard Output: 10-Turn CW Increasing (Code 380 Shown)
100
90
80
70
60
50
40
30
20
10
0
Rotational Life vs. Shaft Side Load
Rotational Life (Millions of Cycles)
60
50
40
30
20
10
0
0
50
100
150
200
250
300
350
400
450
500
Vout (%)
OUTPUT
0
500
1000
1500
2000
2500
3000
3500
4000
Mechanical Angle (°)
REV. 01/17
CW DIRECTION
Shaft Side Load (grams)
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
以前一直用mega2560,好不容易解决了watchdog的问题,看门狗正常工作。 新项目中boss要求mega328p也能够支持看门狗,想想应该是比较容易的,毕竟avr官方文档中有对watchdog的说明。这个坑就这样埋下了。 写一个看门狗测试程序: #include avr/wdt.h const int ledPin = 13; // the number of the LED...[详细]